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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Vibrational spectroscopic study of the copper silicate mineral kinoite Ca _2Cu _2Si _3O _(10)(OH) _4
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Vibrational spectroscopic study of the copper silicate mineral kinoite Ca _2Cu _2Si _3O _(10)(OH) _4

机译：硅酸铜矿物钾盐岩Ca _2Cu _2Si _3O _（10）（OH）_4的振动光谱研究

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摘要

Kinoite Ca _2Cu _2Si _3O _(10)(OH) _4 is a mineral named after a Jesuit missionary. Raman and infrared spectroscopy have been used to characterise the structure of the mineral. The Raman spectrum is characterised by an intense sharp band at 847 cm ~(-1) assigned to the ν _1 (A _(1g)) symmetric stretching vibration. Intense sharp bands at 951, 994 and 1000 cm ~(-1) are assigned to the ν _3 (E _u, A ~(2u), B _(1g)) SiO _4 antisymmetric stretching vibrations. Multiple ν _2 SiO _4 vibrational modes indicate strong distortion of the SiO _4 tetrahedra. Multiple CaO and CuO stretching bands are observed. Raman spectroscopy confirmed by infrared spectroscopy clearly shows that hydroxyl units are involved in the kinoite structure. Based upon the infrared spectra, it is proposed that water is also involved in the kinoite structure. Based upon vibrational spectroscopy, the formula of kinoite is defined as Ca _2Cu _2Si _3O _(10)(OH) _4· xH _2O.
机译：Kinoite Ca _2Cu _2Si _3O _（10）（OH）_4是一种以耶稣会传教士命名的矿物。拉曼光谱和红外光谱已用于表征矿物的结构。拉曼光谱的特征是在847 cm〜（-1）处分配给ν_1（A _（1 g））对称拉伸振动的强烈尖锐带。分别在951、994和1000 cm〜（-1）处出现强烈的锐带，将其分配给ν_3（E _u，A〜（2u），B _（1g））SiO _4反对称拉伸振动。多个ν_2 SiO _4振动模式表明SiO _4四面体的强烈变形。观察到多个CaO和CuO拉伸带。通过红外光谱证实的拉曼光谱清楚地表明，羟基单位参与了堇青石的结构。基于红外光谱，提出水也参与了堇青石结构。基于振动光谱法，将堇青石的式定义为Ca _2Cu _2Si _3O _（10）（OH）_4·xH _2O。

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